研究领域：
The primary research of our laboratory is based on the use of natural radioisotopes as tracers of geological and oceanographic processes. By measuring precisely radioisotopes that result from the decay of uranium and thorium in the environment, we investigate such diverse topics as interactions of river water and sediments with sea water; flow of ground water through salt marshes; the mixing rate of the ocean; hydrothermal processes at ocean spreading centers; the internal structure of minerals; the ages, rates, and processes of formation of manganese nodules; the rate of growth of corals; and sea level changes. During the past decade our efforts have been focused on the following topics: